VintageKustom.com
VintageKustom.com is your source for literature and information on the tuck-and-roll vintage Kustom amps from the 60's and 70's, as well as their related products such as guitars and organs . We provide a webboard for help with kustom gear history, technical information and repairs as well as discussions with other collectors.

Home » VintageKustom.com » Repairing Kustom Amps » K150-6 pumps out DC voltage when powered on.
Show: Today's Messages :: Polls :: Message Navigator
Return to the default flat view Create a new topic Submit Reply
Re: K150-6 pumps out DC voltage when powered on. [message #27703 is a reply to message #23707] Mon, 02 March 2020 22:07 Go to previous messageGo to previous message
corybrown is currently offline  corybrown
Messages: 51
Registered: August 2015
Member
Okay I took a bunch of measurements.

Q1 B = .6V C = 5.79V
Q2 E = .6V C = -33V
Q3 E = .6V C = -34V
Q4 C = -34V E = -34V B = -34V
Q5 -27V at CR1
Q6 -27V at CR2
Q7 B = -26V E = -26V C = -144mV
Q8 B = -26V E = -26V C = -26V
Q9 B = 7V E = 7V
CR10 E = 7V
Q11 B = 9V E = 9V C = 43V
Q12 B = 9V E = 8.62V C = 43V
Q13 B = 8.62V E = 8.5V C = 9.68V
Q14 B = -.6V C = -9.2V
Q15 B = -8.5V E = -9.2V C = -42V
Q16 B = -41V E = -41V C = -8V
Q17 B = -8.5V E = -8.5V C = -9V
Q18 B = -26V E = -26V C = 42V
Q19 B = -42V E = -42V C = -26V


Q4 and Q12 stood out as having funny values compared to how I was reading the schematic.
[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: K100 2 Questions
Next Topic: Reducing the high frequency hiss on Frankie heads
Goto Forum:
  

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ]

Current Time: Thu Nov 14 00:17:35 EST 2024